Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1046/j.1365-2699.1999.00132.x |
Monitoring and modelling open savannas using multisource information: analyses of Kalahari studies | |
Dougill, A; Trodd, N | |
通讯作者 | Dougill, A |
会议名称 | Workshop on Tropical Open Woodlands |
会议日期 | DEC 10, 1997 |
会议地点 | LEEDS, ENGLAND |
英文摘要 | In the Kalahari of Botswana. as in many other open savannas, the main ecological change following cattle-based agricultural intensification is one of grass removal and bush encroachment. Changes to vegetation communities in Kalahari rangelands have been expressed in terms of a state-and-transition model. However, there remain uncertainties as to the mechanisms and conditions for ecological change. In part, this is due to previous (inadequate) spatial and temporal scales of data collection. This paper describes the results of ongoing ecological studies in the Makoba ranches and analyses the contribution that fine-scale ground-based surveys and interpretation of Earth observation data can make to reducing uncertainties in state-and-transition models. This detailed case study provides a mechanism for evaluating the role of multi-source information for monitoring and modelling open savannas. |
英文关键词 | bush encroachment environmental monitoring open savanna Kalahari remote-sensing spatial patterns resilience state and transition models |
来源出版物 | GLOBAL ECOLOGY AND BIOGEOGRAPHY |
ISSN | 1466-822X |
出版年 | 1999 |
卷号 | 8 |
期号 | 3-4 |
页码 | 211-221 |
出版者 | WILEY-BLACKWELL |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | England |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000084868000005 |
WOS关键词 | SPECTRAL VEGETATION INDEXES ; SEMIARID BOTSWANA ; SOUTHERN-AFRICA ; SOIL-MOISTURE ; NDVI RESPONSE ; ARID SAVANNA ; RAINFALL ; DESERT ; DYNAMICS ; PATTERNS |
WOS类目 | Ecology ; Geography, Physical |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/292643 |
作者单位 | (1)Univ Leeds, Leeds Environm Ctr, Leeds LS2 9JT, W Yorkshire, England;(2)Univ Salford, Dept Geog, Telford Inst Environm Syst, Salford M5 4WT, Lancs, England |
推荐引用方式 GB/T 7714 | Dougill, A,Trodd, N. Monitoring and modelling open savannas using multisource information: analyses of Kalahari studies[C]:WILEY-BLACKWELL,1999:211-221. |
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